Optional accessories for the NZM circuit breaker series offer an extensive portfolio of application options for worldwide use. Installation is flexible and easy thanks to modular function groups. Notes: Conversion kit from N(ZM)12 to N(ZM)4. With the connection lugs of the replacement kit, all 3-pole NZM12 or N12 manufactured from 1983 onwards can be adapted to the connection dimensions of the NZM4 or N4. 4-pole basic devices and devices with withdrawable technology and remote drive are not interchangeable. Scope of the replacement kits N(ZM)4-XAS12.., 3 connection extensions on the blow-out side, 3 connection extensions on the ZM side, 2 mounting brackets, 4 fastening screws, 4 phase separators, 6 fastening screws, nuts and clamping washers. Drilling template in paper form in the assembly and maintenance instructions. The replacement kits are the same size as the N(ZM)12.. types, which correspond to the production status from 02/97 to today. Special feature: The N(ZM)12-800 was manufactured before 02/97 with 10mm instead of 8mm connection lugs. For these types, the customer must determine the year of manufacture of the device by measuring the thickness of the connection lug and order the N(ZM)4-XAS12-1250 replacement kit. Supplement for devices built before 1983! Here the replacement kit for load break switches can be used in its entirety. For circuit breakers with a 'long' ZM version, the adapters only fit at the top! At the bottom, the devices are approx. 65mm longer and the lower connection is approx. 26mm deeper. As a result, the adapters for the bottom are too short and the height does not match. Can be used for: NZM4